Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018)
International audience The past thermokarst activities in valleys of northern France and Belgium covered the Upper Weichselian and the Upper Saalian periods. To develop in western Europe, thermokarst first requires an accumulation of ground ice close to the surface progressively stored along the gla...
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Online Access: | https://hal.archives-ouvertes.fr/hal-02521595 https://doi.org/10.1016/j.geomorph.2018.08.036 |
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ftccsdartic:oai:HAL:hal-02521595v1 2023-05-15T15:14:32+02:00 Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018) Van Vliet-Lanoë, Brigitte Pissart, Albert Baize, Stephane Brulhet, Jacques Ego, Frederic PSE-ENV/SCAN/BERSSIN Institut de Radioprotection et de Sûreté Nucléaire (IRSN) Agence Nationale pour la Gestion des Déchets Radioactifs (ANDRA) 2019-02-15 https://hal.archives-ouvertes.fr/hal-02521595 https://doi.org/10.1016/j.geomorph.2018.08.036 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2018.08.036 hal-02521595 https://hal.archives-ouvertes.fr/hal-02521595 doi:10.1016/j.geomorph.2018.08.036 ISSN: 0169-555X Geomorphology https://hal.archives-ouvertes.fr/hal-02521595 Geomorphology, 2019, 327, pp.613-628. ⟨10.1016/j.geomorph.2018.08.036⟩ Thermokarst Frost mounds Orbital forcing Weichselian Saalian Dansgaerd-Oeschger events [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1016/j.geomorph.2018.08.036 2021-11-28T00:27:04Z International audience The past thermokarst activities in valleys of northern France and Belgium covered the Upper Weichselian and the Upper Saalian periods. To develop in western Europe, thermokarst first requires an accumulation of ground ice close to the surface progressively stored along the glacial-time permafrost aggradation it is regionally uncommon during the early glacials, especially on the plateau, but frequent during the Upper Pleniglacials in valleys. These features mostly relate to various frost mounds created by injection and segregated ices. The role of ice wedges is really very limited in this zone of southern extent of the European palaeo-permafrost on plateau and terraces. Thermokarst events are mostly susceptible to occur during the coldest part of the glacial. With a more progressive warming or a retrogressive thermokarst triggered by erosion, as in Arctic today, deformations are more gradual, in direct relation with the rheological properties of the sediments and usually local drainage. They are in concurrence with the vegetation dynamic that will limit its expression. Thermokarst events are in first order orbitally forced under control of a maximum insolation and a minimum in precession, as well as during the Weichselian and the Saalian. They are moreover, associated with abrupt warming transmitted by Dansgaerd Oeschger events. Snowiness and mild winter temperatures are probably the main triggers for thermokarst activity as of today. Other events can be triggered by solar activity as at 20 ka or perhaps enhanced by major ash splay as during the MIS 6b Zeiffen interstadial. Thermokarst events are usually followed on the continent by a reorganization of the rivers from braided to meandering systems. © 2018 Elsevier B.V. Article in Journal/Newspaper Arctic Ice permafrost Thermokarst wedge* Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Geomorphology 327 613 628 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Thermokarst Frost mounds Orbital forcing Weichselian Saalian Dansgaerd-Oeschger events [SDU]Sciences of the Universe [physics] |
spellingShingle |
Thermokarst Frost mounds Orbital forcing Weichselian Saalian Dansgaerd-Oeschger events [SDU]Sciences of the Universe [physics] Van Vliet-Lanoë, Brigitte Pissart, Albert Baize, Stephane Brulhet, Jacques Ego, Frederic Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018) |
topic_facet |
Thermokarst Frost mounds Orbital forcing Weichselian Saalian Dansgaerd-Oeschger events [SDU]Sciences of the Universe [physics] |
description |
International audience The past thermokarst activities in valleys of northern France and Belgium covered the Upper Weichselian and the Upper Saalian periods. To develop in western Europe, thermokarst first requires an accumulation of ground ice close to the surface progressively stored along the glacial-time permafrost aggradation it is regionally uncommon during the early glacials, especially on the plateau, but frequent during the Upper Pleniglacials in valleys. These features mostly relate to various frost mounds created by injection and segregated ices. The role of ice wedges is really very limited in this zone of southern extent of the European palaeo-permafrost on plateau and terraces. Thermokarst events are mostly susceptible to occur during the coldest part of the glacial. With a more progressive warming or a retrogressive thermokarst triggered by erosion, as in Arctic today, deformations are more gradual, in direct relation with the rheological properties of the sediments and usually local drainage. They are in concurrence with the vegetation dynamic that will limit its expression. Thermokarst events are in first order orbitally forced under control of a maximum insolation and a minimum in precession, as well as during the Weichselian and the Saalian. They are moreover, associated with abrupt warming transmitted by Dansgaerd Oeschger events. Snowiness and mild winter temperatures are probably the main triggers for thermokarst activity as of today. Other events can be triggered by solar activity as at 20 ka or perhaps enhanced by major ash splay as during the MIS 6b Zeiffen interstadial. Thermokarst events are usually followed on the continent by a reorganization of the rivers from braided to meandering systems. © 2018 Elsevier B.V. |
author2 |
PSE-ENV/SCAN/BERSSIN Institut de Radioprotection et de Sûreté Nucléaire (IRSN) Agence Nationale pour la Gestion des Déchets Radioactifs (ANDRA) |
format |
Article in Journal/Newspaper |
author |
Van Vliet-Lanoë, Brigitte Pissart, Albert Baize, Stephane Brulhet, Jacques Ego, Frederic |
author_facet |
Van Vliet-Lanoë, Brigitte Pissart, Albert Baize, Stephane Brulhet, Jacques Ego, Frederic |
author_sort |
Van Vliet-Lanoë, Brigitte |
title |
Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018) |
title_short |
Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018) |
title_full |
Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018) |
title_fullStr |
Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018) |
title_full_unstemmed |
Evidence of multiple thermokarst events in northeastern France and southern Belgium during the two last glaciations. A discussion on ‘Features caused by ground ice growth and decay in Late Pleistocene fluvial deposits, Paris basin, France’ (Bertran et al., 2018) |
title_sort |
evidence of multiple thermokarst events in northeastern france and southern belgium during the two last glaciations. a discussion on ‘features caused by ground ice growth and decay in late pleistocene fluvial deposits, paris basin, france’ (bertran et al., 2018) |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02521595 https://doi.org/10.1016/j.geomorph.2018.08.036 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Thermokarst wedge* |
genre_facet |
Arctic Ice permafrost Thermokarst wedge* |
op_source |
ISSN: 0169-555X Geomorphology https://hal.archives-ouvertes.fr/hal-02521595 Geomorphology, 2019, 327, pp.613-628. ⟨10.1016/j.geomorph.2018.08.036⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2018.08.036 hal-02521595 https://hal.archives-ouvertes.fr/hal-02521595 doi:10.1016/j.geomorph.2018.08.036 |
op_doi |
https://doi.org/10.1016/j.geomorph.2018.08.036 |
container_title |
Geomorphology |
container_volume |
327 |
container_start_page |
613 |
op_container_end_page |
628 |
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1766344971683627008 |